From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A8822C433E1 for ; Tue, 18 Aug 2020 07:13:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 888172075E for ; Tue, 18 Aug 2020 07:13:56 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="jBhQriRw" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726370AbgHRHNv (ORCPT ); Tue, 18 Aug 2020 03:13:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38966 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726228AbgHRHNu (ORCPT ); Tue, 18 Aug 2020 03:13:50 -0400 Received: from mail-pl1-x644.google.com (mail-pl1-x644.google.com [IPv6:2607:f8b0:4864:20::644]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3D909C061342 for ; Tue, 18 Aug 2020 00:13:50 -0700 (PDT) Received: by mail-pl1-x644.google.com with SMTP id f10so8785624plj.8 for ; Tue, 18 Aug 2020 00:13:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=BgH1OQJe0vDcind90faXlTgA3YjOyLHfHtqyBUp1Czc=; b=jBhQriRwN1E1G4yJ7yJ5QVDbR3yI60qfxFdNsiw1JCtEbsa6GBtVj3rXYqfrkw1aRi BBFDqgJ42hRBKauGzagAsCP9lo2zL3e6eFXcUOdjV3WZq3DzR1tibyoqkNwHzvl0SAos v5Yv2iK3XSVROgT7Y2Z9jT9El0Eh8HaHTb83E= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=BgH1OQJe0vDcind90faXlTgA3YjOyLHfHtqyBUp1Czc=; b=mGVosMO5QpcMQ7Wa/ZyldK4sqSJyI2LtcbwVpJYPhXLQIQQCsy5VRXX5xrJuF1BjCF VInaiS8zqUNQb+Pyzyim0zGUx0x6MDIJLj5VtxcMxsZ37jp9L7zQP/uazfpPUWftJubC DzRy33qttvwexAVaP8Za0S6KMq8B1rLpRkyBCtkZjPeNohrJ5jc3gFEMUTDYMH7Yp/WO xaYInyXI8xT1KJUGRAMtjLM6Y7RIXtNSTtbXCByFxfa9D0yq0M5osOCCPZOZDAg/TbNE yqBersFx1BTL4FNGiXM6exxNHyUAOLtZOxbsCYBwLiJwZJ5ZEqzkUTWRWfGeQzOF1u5b XsHg== X-Gm-Message-State: AOAM530zXmO/L0qVjxAbrmrH8aagDHwJsll5RLX20foX6A0KlqKk9rOM 0L7PsGaTv0oWQBA1B8sUTF/rHw== X-Google-Smtp-Source: ABdhPJxuueydVbd6bk9DsX+V9TjGBCXpTewyWvogJZRb7m1T+Taz+F9x0MJK+8gr+vU6zEAzQBkJ7Q== X-Received: by 2002:a17:90b:1c06:: with SMTP id oc6mr14823420pjb.182.1597734829705; Tue, 18 Aug 2020 00:13:49 -0700 (PDT) Received: from localhost ([2401:fa00:8f:203:f693:9fff:fef4:a930]) by smtp.gmail.com with ESMTPSA id g33sm15709005pgg.46.2020.08.18.00.13.46 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 18 Aug 2020 00:13:49 -0700 (PDT) From: David Stevens To: Gerd Hoffmann Cc: David Airlie , Daniel Vetter , Sumit Semwal , "Michael S . Tsirkin" , Jason Wang , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Stevens , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, virtualization@lists.linux-foundation.org, linux-media@vger.kernel.org, linaro-mm-sig@lists.linaro.org, virtio-dev@lists.oasis-open.org Subject: [PATCH v7 0/3] Support virtio cross-device resources Date: Tue, 18 Aug 2020 16:13:40 +0900 Message-Id: <20200818071343.3461203-1-stevensd@chromium.org> X-Mailer: git-send-email 2.28.0.220.ged08abb693-goog MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org This patchset implements the current proposal for virtio cross-device resource sharing [1]. It will be used to import virtio resources into the virtio-video driver currently under discussion [2]. The patch under consideration to add support in the virtio-video driver is [3]. It uses the APIs from v3 of this series, but the changes to update it are relatively minor. This patchset adds a new flavor of dma-bufs that supports querying the underlying virtio object UUID, as well as adding support for exporting resources from virtgpu. [1] https://markmail.org/thread/2ypjt5cfeu3m6lxu [2] https://markmail.org/thread/p5d3k566srtdtute [3] https://markmail.org/thread/j4xlqaaim266qpks v6 -> v7 changes: - Fix most strict checkpatch comments David Stevens (3): virtio: add dma-buf support for exported objects virtio-gpu: add VIRTIO_GPU_F_RESOURCE_UUID feature drm/virtio: Support virtgpu exported resources drivers/gpu/drm/virtio/virtgpu_drv.c | 3 + drivers/gpu/drm/virtio/virtgpu_drv.h | 21 ++++++ drivers/gpu/drm/virtio/virtgpu_kms.c | 4 ++ drivers/gpu/drm/virtio/virtgpu_prime.c | 96 +++++++++++++++++++++++++- drivers/gpu/drm/virtio/virtgpu_vq.c | 55 +++++++++++++++ drivers/virtio/Makefile | 2 +- drivers/virtio/virtio.c | 6 ++ drivers/virtio/virtio_dma_buf.c | 85 +++++++++++++++++++++++ include/linux/virtio.h | 1 + include/linux/virtio_dma_buf.h | 37 ++++++++++ include/uapi/linux/virtio_gpu.h | 19 +++++ 11 files changed, 325 insertions(+), 4 deletions(-) create mode 100644 drivers/virtio/virtio_dma_buf.c create mode 100644 include/linux/virtio_dma_buf.h -- 2.28.0.220.ged08abb693-goog